No Sump No skimmer

eekimov1981

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Hi everyone!
I’ve been in and out of the reefing hobby for quite a while, but this time I decided to take a completely different approach .. something more experimental and minimalistic. I thought it might be interesting to share it here and keep a proper record as it evolves.




What’s the idea behind it…
I don’t like fish!
I love corals, and I’m much more passionate about the chemical side of the hobby than about trying to recreate natural ecosystems.


Since the tank was going to be corals-only (no fish), I decided to go for an ADA-style marine aquarium, using a canister filter instead of a sump and skimmer. It’s cleaner, more discreet, consumes less power, poses less risk of flooding — and above all, it’s much quieter.


The tank is installed in my kitchen, so it adds to the pleasure of enjoying it while eating — without the constant humming of 10+ pumps in the background.


At the time of writing this thread, the tank is one year old.

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Tank age: 1 year
Dimensions & volume: 90 × 45 × 40h cm display, approx. 150 L total water volume (Ultra Clear Vision glass)


Lighting: Two tired old Kessil A350W Tuna Blue LEDs bought years ago from a Romanian clearance sale. This is the very first Kessil model, quite experimental, and unfortunately nowhere near today’s advanced models.
I also have a full T5 setup ready with excellent reflectors, ballasts, and active cooling for the cathodes via Arduino , but I haven’t used it yet. If I move toward SPS corals, I’ll activate it.


Water parameters: Currently not monitored, except for salinity — I’ll explain why later.


Ca / KH / Mg maintenance: Not required yet, I only add magnesium chloride occasionally.


Salt & water changes: Red Sea Black Bucket salt, around 10% weekly.


Mechanical filtration: JBL e902 canister filter + Sera Siporax (2 liters).


Sand & rock: Red Sea’s finest-grade sand (10 kg), artificial branch rocks plus 4 kg of live branch rock.


Coral feeding & coloration:
KZ Sponge Power, KZ Coral Snow, KZ Coral Vitalizer, KZ Pohl’s Extra, KZ Amino Acids.


Nitrate & phosphate control: DIY carbon-source mix based on Red Sea NOPO-X.


Flow: JBL e902 canister + Jebao RW-8.


Water sterilization: None.


Skimmer: None!
Originally, I used a small Innovative Marine Ghost Skimmer , beautiful little unit , but it eventually broke down.
A skimmer has two main purposes:
  1. Oxygenation — which in my case is handled by a JBL CO₂ diffuser connected to the canister’s intake.
  2. Removing dissolved organic compounds — which I handle via resins and various filter media.

Since this is a fishless system, there’s very little organic load.


Sump: Nope.


Inhabitants: Various soft corals and polyps, and a single anemone.

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Congratulations on the adventure!
 

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